missing '\n' at end of debug message.

port Adaptive Timeouts from b1_6 to HEAD.
b=14071
r=nathan
r=adilger

add debug lines for keyring.

support other encrypt/checksum algorithms for bulk i/o, default in gss
mode is sha1/aes128, for others default enable bulk checksum by adler32.
b=13667
r=yong.fan
r=h.huang
r=adilger

- redesigned remote acl support, by FanYong
  b=11842
  r=pravin.shelar, eric.mei
- new sptlrpc configure interface
  b=13642
  r=yong.fan, rahul.deshmukh
- split kerberos keytab for lustre_root
  b=13873
  r=yong.fan, h.huang
- fix setuid for gss with linux keyring
  b=13899
  r=yong.fan, h.huang

fix the race between gss ctx destroy and request callback.
b=13719
r=fanyong,tappro

- coding style fix
- add items of ChangeLog
b=11832
r=vitaly, tappro

land b1_8_gssfix (20070919_1543): various gss fixes (b11841)

land b1_8_keyring (20070919_1155): support linux keyring in lustre gss.